101005000551 has 24 divisors (see below), whose sum is σ = 179564446880. Its totient is φ = 53277362496.

The previous prime is 101005000493. The next prime is 101005000553. The reversal of 101005000551 is 155000500101.

101005000551 is a `hidden beast` number, since 10 + 100 + 5 + 0 + 0 + 0 + 551 = 666.

It is not a de Polignac number, because 101005000551 - 2⁶ = 101005000487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101005000553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61662796 + ... + 61664433.

Almost surely, 2^101005000551 is an apocalyptic number.

101005000551 is a deficient number, since it is larger than the sum of its proper divisors (78559446329).

101005000551 is a wasteful number, since it uses less digits than its factorization.

101005000551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123327255 (or 123327252 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 101005000551 its reverse (155000500101), we get a palindrome (256005500652).

The spelling of 101005000551 in words is "one hundred one billion, five million, five hundred fifty-one", and thus it is an aban number.