1155660351 has 16 divisors (see below), whose sum is σ = 1626906240. Its totient is φ = 727673760.

The previous prime is 1155660329. The next prime is 1155660409. The reversal of 1155660351 is 1530665511.

It is not a de Polignac number, because 1155660351 - 2⁷ = 1155660223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155660301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11760 + ... + 49493.

It is an arithmetic number, because the mean of its divisors is an integer number (101681640).

Almost surely, 2^1155660351 is an apocalyptic number.

1155660351 is a deficient number, since it is larger than the sum of its proper divisors (471245889).

1155660351 is a wasteful number, since it uses less digits than its factorization.

1155660351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61606.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 1155660351 is about 33995.0047948224. The cubic root of 1155660351 is about 1049.4056654646.

The spelling of 1155660351 in words is "one billion, one hundred fifty-five million, six hundred sixty thousand, three hundred fifty-one".