61650596886912 has 768 divisors, whose sum is σ = 202660514784000. Its totient is φ = 18295788994560.

The previous prime is 61650596886887. The next prime is 61650596886913. The reversal of 61650596886912 is 21968869505616.

It is a happy number.

61650596886912 is a `hidden beast` number, since 6 + 16 + 5 + 0 + 596 + 8 + 8 + 6 + 9 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61650596886913) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43202940343 + ... + 43202941769.

It is an arithmetic number, because the mean of its divisors is an integer number (263880878625).

Almost surely, 2^{61650596886912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61650596886912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101330257392000).

61650596886912 is an abundant number, since it is smaller than the sum of its proper divisors (141009917897088).

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

61650596886912 is a wasteful number, since it uses less digits than its factorization.

61650596886912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 335923200, while the sum is 72.

The spelling of 61650596886912 in words is "sixty-one trillion, six hundred fifty billion, five hundred ninety-six million, eight hundred eighty-six thousand, nine hundred twelve".