61516896676 has 81 divisors (see below), whose sum is σ = 116601589377. Its totient is φ = 28394016480.

The previous prime is 61516896631. The next prime is 61516896689. The reversal of 61516896676 is 67669861516.

The square root of 61516896676 is 248026.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2000415076 + 59516481600 = 44726^2 + 243960^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

Its product of digits (19595520) is a multiple of the sum of its prime divisors (189).

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 26 ways as a sum of consecutive naturals, for example, 574924215 + ... + 574924321.

Almost surely, 2^61516896676 is an apocalyptic number.

61516896676 is the 248026-th square number.

It is an amenable number.

61516896676 is a deficient number, since it is larger than the sum of its proper divisors (55084692701).

61516896676 is a wasteful number, since it uses less digits than its factorization.

61516896676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 189 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 61.

The spelling of 61516896676 in words is "sixty-one billion, five hundred sixteen million, eight hundred ninety-six thousand, six hundred seventy-six".