6151506516 has 18 divisors (see below), whose sum is σ = 15549641562. Its totient is φ = 2050502160.

The previous prime is 6151506479. The next prime is 6151506553. The reversal of 6151506516 is 6156051516.

It is an interprime number because it is at equal distance from previous prime (6151506479) and next prime (6151506553).

It can be written as a sum of positive squares in only one way, i.e., 6115865616 + 35640900 = 78204^2 + 5970^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 170875181 = 6151506516 / (6 + 1 + 5 + 1 + 5 + 0 + 6 + 5 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85437555 + ... + 85437626.

Almost surely, 2^6151506516 is an apocalyptic number.

It is an amenable number.

6151506516 is an abundant number, since it is smaller than the sum of its proper divisors (9398135046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6151506516 is a wasteful number, since it uses less digits than its factorization.

6151506516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170875191 (or 170875186 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 6151506516 is about 78431.5403138304. The cubic root of 6151506516 is about 1832.2883886658.

The spelling of 6151506516 in words is "six billion, one hundred fifty-one million, five hundred six thousand, five hundred sixteen".