20467461351040 has 256 divisors, whose sum is σ = 54648272384640. Its totient is φ = 7265805926400.

The previous prime is 20467461351019. The next prime is 20467461351041. The reversal of 20467461351040 is 4015316476402.

It is a super-2 number, since 2×20467461351040² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (20467461351041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 610569480 + ... + 610603000.

Almost surely, 2^{20467461351040} is an apocalyptic number.

20467461351040 is a gapful number since it is divisible by the number (20) 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 20467461351040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27324136192320).

20467461351040 is an abundant number, since it is smaller than the sum of its proper divisors (34180811033600).

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

20467461351040 is a wasteful number, since it uses less digits than its factorization.

20467461351040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35611 (or 35599 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20467461351040 in words is "twenty trillion, four hundred sixty-seven billion, four hundred sixty-one million, three hundred fifty-one thousand, forty".