7151520546 has 12 divisors (see below), whose sum is σ = 15494961222. Its totient is φ = 2383840176.

The previous prime is 7151520539. The next prime is 7151520557. The reversal of 7151520546 is 6450251517.

7151520546 is a `hidden beast` number, since 71 + 515 + 20 + 54 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4440756321 + 2710764225 = 66639^2 + 52065^2 .

It is a super-2 number, since 2×7151520546² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7151520546.

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, 198653331 + ... + 198653366.

Almost surely, 2^7151520546 is an apocalyptic number.

7151520546 is an abundant number, since it is smaller than the sum of its proper divisors (8343440676).

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

7151520546 is a wasteful number, since it uses less digits than its factorization.

7151520546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397306705 (or 397306702 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 7151520546 is about 84566.6633254499. The cubic root of 7151520546 is about 1926.6350797547.

The spelling of 7151520546 in words is "seven billion, one hundred fifty-one million, five hundred twenty thousand, five hundred forty-six".