16616660151 has 128 divisors (see below), whose sum is σ = 29135282176. Its totient is φ = 8190927360.

The previous prime is 16616660147. The next prime is 16616660171. The reversal of 16616660151 is 15106661661.

It is not a de Polignac number, because 16616660151 - 2² = 16616660147 is a prime.

It is a super-2 number, since 2×16616660151² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616660131) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 29100696 + ... + 29101266.

It is an arithmetic number, because the mean of its divisors is an integer number (227619392).

Almost surely, 2^16616660151 is an apocalyptic number.

16616660151 is a deficient number, since it is larger than the sum of its proper divisors (12518622025).

16616660151 is a wasteful number, since it uses less digits than its factorization.

16616660151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 16616660151 in words is "sixteen billion, six hundred sixteen million, six hundred sixty thousand, one hundred fifty-one".