61080099916 has 24 divisors (see below), whose sum is σ = 116624983104. Its totient is φ = 27759510480.

The previous prime is 61080099911. The next prime is 61080099917. The reversal of 61080099916 is 61999008016.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61080099916.

It is not an unprimeable number, because it can be changed into a prime (61080099911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202011 + ... + 403693.

It is an arithmetic number, because the mean of its divisors is an integer number (4859374296).

Almost surely, 2^61080099916 is an apocalyptic number.

It is an amenable number.

61080099916 is a deficient number, since it is larger than the sum of its proper divisors (55544883188).

61080099916 is a wasteful number, since it uses less digits than its factorization.

61080099916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208581 (or 208579 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 49.

The spelling of 61080099916 in words is "sixty-one billion, eighty million, ninety-nine thousand, nine hundred sixteen".