61006623510 has 32 divisors (see below), whose sum is σ = 167332453632. Its totient is φ = 13944371040.

The previous prime is 61006623463. The next prime is 61006623533. The reversal of 61006623510 is 1532660016.

It is a super-2 number, since 2×61006623510² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145253656 + ... + 145254075.

It is an arithmetic number, because the mean of its divisors is an integer number (5229139176).

Almost surely, 2^61006623510 is an apocalyptic number.

61006623510 is an abundant number, since it is smaller than the sum of its proper divisors (106325830122).

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

61006623510 is a wasteful number, since it uses less digits than its factorization.

61006623510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290507748.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 61006623510 in words is "sixty-one billion, six million, six hundred twenty-three thousand, five hundred ten".