61023467520 has 288 divisors, whose sum is σ = 220699533600. Its totient is φ = 15564865536.

The previous prime is 61023467489. The next prime is 61023467551. The reversal of 61023467520 is 2576432016.

61023467520 is a `hidden beast` number, since 610 + 2 + 34 + 6 + 7 + 5 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (61023467489) and next prime (61023467551).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2105286 + ... + 2134074.

It is an arithmetic number, because the mean of its divisors is an integer number (766317825).

Almost surely, 2^61023467520 is an apocalyptic number.

61023467520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61023467520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110349766800).

61023467520 is an abundant number, since it is smaller than the sum of its proper divisors (159676066080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61023467520 is a wasteful number, since it uses less digits than its factorization.

61023467520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28845 (or 28822 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 61023467520 its reverse (2576432016), we get a palindrome (63599899536).

The spelling of 61023467520 in words is "sixty-one billion, twenty-three million, four hundred sixty-seven thousand, five hundred twenty".