100151655661 has 4 divisors (see below), whose sum is σ = 101070478300. Its totient is φ = 99232833024.

The previous prime is 100151655619. The next prime is 100151655707. The reversal of 100151655661 is 166556151001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 166556151001 = 241 ⋅691104361.

It can be written as a sum of positive squares in 2 ways, for example, as 50341896900 + 49809758761 = 224370^2 + 223181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100151655661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100151655661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100151655361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459411156 + ... + 459411373.

It is an arithmetic number, because the mean of its divisors is an integer number (25267619575).

Almost surely, 2^100151655661 is an apocalyptic number.

It is an amenable number.

100151655661 is a deficient number, since it is larger than the sum of its proper divisors (918822639).

100151655661 is an equidigital number, since it uses as much as digits as its factorization.

100151655661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918822638.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 100151655661 in words is "one hundred billion, one hundred fifty-one million, six hundred fifty-five thousand, six hundred sixty-one".