151616661161 has 16 divisors (see below), whose sum is σ = 175021594368. Its totient is φ = 128648520000.

The previous prime is 151616661151. The next prime is 151616661169. The reversal of 151616661161 is 161166616151.

It is a de Polignac number, because none of the positive numbers 2^k-151616661161 is a prime.

It is a super-2 number, since 2×151616661161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151616661169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5182571 + ... + 5211743.

It is an arithmetic number, because the mean of its divisors is an integer number (10938849648).

Almost surely, 2^151616661161 is an apocalyptic number.

It is an amenable number.

151616661161 is a deficient number, since it is larger than the sum of its proper divisors (23404933207).

151616661161 is a wasteful number, since it uses less digits than its factorization.

151616661161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36632.

The product of its digits is 38880, while the sum is 41.

The spelling of 151616661161 in words is "one hundred fifty-one billion, six hundred sixteen million, six hundred sixty-one thousand, one hundred sixty-one".