61650677166772 has 6 divisors (see below), whose sum is σ = 107888685041858. Its totient is φ = 30825338583384.

The previous prime is 61650677166769. The next prime is 61650677166811. The reversal of 61650677166772 is 27766177605616.

It can be written as a sum of positive squares in only one way, i.e., 61378230749476 + 272446417296 = 7834426^2 + 521964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61650677166698 and 61650677166707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7706334645843 + ... + 7706334645850.

Almost surely, 2^{61650677166772} is an apocalyptic number.

It is an amenable number.

61650677166772 is a deficient number, since it is larger than the sum of its proper divisors (46238007875086).

61650677166772 is a wasteful number, since it uses less digits than its factorization.

61650677166772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15412669291697 (or 15412669291695 counting only the distinct ones).

The product of its (nonzero) digits is 186701760, while the sum is 67.

The spelling of 61650677166772 in words is "sixty-one trillion, six hundred fifty billion, six hundred seventy-seven million, one hundred sixty-six thousand, seven hundred seventy-two".