551516115151 has 4 divisors (see below), whose sum is σ = 552186244912. Its totient is φ = 550845985392.

The previous prime is 551516115119. The next prime is 551516115173. The reversal of 551516115151 is 151511615155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 551516115151 - 2⁵ = 551516115119 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 551516115151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551516119151) 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, 335063646 + ... + 335065291.

It is an arithmetic number, because the mean of its divisors is an integer number (138046561228).

Almost surely, 2^551516115151 is an apocalyptic number.

551516115151 is a deficient number, since it is larger than the sum of its proper divisors (670129761).

551516115151 is an equidigital number, since it uses as much as digits as its factorization.

551516115151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670129760.

The product of its digits is 18750, while the sum is 37.

The spelling of 551516115151 in words is "five hundred fifty-one billion, five hundred sixteen million, one hundred fifteen thousand, one hundred fifty-one".