61620133167 has 12 divisors (see below), whose sum is σ = 89015957784. Its totient is φ = 41075889360.

The previous prime is 61620133151. The next prime is 61620133181. The reversal of 61620133167 is 76133102616.

61620133167 is a `hidden beast` number, since 6 + 1 + 620 + 13 + 3 + 16 + 7 = 666.

It is not a de Polignac number, because 61620133167 - 2⁴ = 61620133151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61620133147) 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, 255684 + ... + 434297.

It is an arithmetic number, because the mean of its divisors is an integer number (7417996482).

Almost surely, 2^61620133167 is an apocalyptic number.

61620133167 is a deficient number, since it is larger than the sum of its proper divisors (27395824617).

61620133167 is a wasteful number, since it uses less digits than its factorization.

61620133167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699910 (or 699907 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 61620133167 in words is "sixty-one billion, six hundred twenty million, one hundred thirty-three thousand, one hundred sixty-seven".