10100151661 has 4 divisors (see below), whose sum is σ = 10100359612. Its totient is φ = 10099943712.

The previous prime is 10100151641. The next prime is 10100151679. The reversal of 10100151661 is 16615100101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3650455561 + 6449696100 = 60419^2 + 80310^2 .

It is a cyclic number.

It is not a de Polignac number, because 10100151661 - 2⁵ = 10100151629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100151641) 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, 12001 + ... + 142633.

It is an arithmetic number, because the mean of its divisors is an integer number (2525089903).

Almost surely, 2^10100151661 is an apocalyptic number.

It is an amenable number.

10100151661 is a deficient number, since it is larger than the sum of its proper divisors (207951).

10100151661 is an equidigital number, since it uses as much as digits as its factorization.

10100151661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207950.

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 10100151661 its reverse (16615100101), we get a palindrome (26715251762).

The spelling of 10100151661 in words is "ten billion, one hundred million, one hundred fifty-one thousand, six hundred sixty-one".