151665550101 has 12 divisors (see below), whose sum is σ = 235924189228. Its totient is φ = 93332646144.

The previous prime is 151665550081. The next prime is 151665550123. The reversal of 151665550101 is 101055566151.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97026020100 + 54639530001 = 311490^2 + 233751^2 .

It is not a de Polignac number, because 151665550101 - 2¹⁸ = 151665287957 is a prime.

It is a super-2 number, since 2×151665550101² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151665550171) 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, 648143260 + ... + 648143493.

Almost surely, 2^151665550101 is an apocalyptic number.

It is an amenable number.

151665550101 is a deficient number, since it is larger than the sum of its proper divisors (84258639127).

151665550101 is a wasteful number, since it uses less digits than its factorization.

151665550101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296286772 (or 1296286769 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 151665550101 in words is "one hundred fifty-one billion, six hundred sixty-five million, five hundred fifty thousand, one hundred one".