61285177536164 has 36 divisors (see below), whose sum is σ = 110898197165952. Its totient is φ = 29633276362320.

The previous prime is 61285177536031. The next prime is 61285177536169. The reversal of 61285177536164 is 46163577158216.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a junction number, because it is equal to n+sod(n) for n = 61285177536097 and 61285177536106.

It is not an unprimeable number, because it can be changed into a prime (61285177536169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131912 + ... + 11071935.

It is an arithmetic number, because the mean of its divisors is an integer number (3080505476832).

Almost surely, 2^{61285177536164} is an apocalyptic number.

It is an amenable number.

61285177536164 is a deficient number, since it is larger than the sum of its proper divisors (49613019629788).

61285177536164 is a wasteful number, since it uses less digits than its factorization.

61285177536164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205336 (or 11205303 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 62.

The spelling of 61285177536164 in words is "sixty-one trillion, two hundred eighty-five billion, one hundred seventy-seven million, five hundred thirty-six thousand, one hundred sixty-four".