61650216655516 has 24 divisors (see below), whose sum is σ = 108940267820384. Its totient is φ = 30524452957440.

The previous prime is 61650216655439. The next prime is 61650216655529. The reversal of 61650216655516 is 61555661205616.

It is a super-2 number, since 2×61650216655516² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5749696 + ... + 12504376.

Almost surely, 2^{61650216655516} is an apocalyptic number.

It is an amenable number.

61650216655516 is a deficient number, since it is larger than the sum of its proper divisors (47290051164868).

61650216655516 is a wasteful number, since it uses less digits than its factorization.

61650216655516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776941 (or 6776939 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 55.

The spelling of 61650216655516 in words is "sixty-one trillion, six hundred fifty billion, two hundred sixteen million, six hundred fifty-five thousand, five hundred sixteen".