1151565510 has 64 divisors (see below), whose sum is σ = 2810520000. Its totient is φ = 301916160.

The previous prime is 1151565487. The next prime is 1151565523. The reversal of 1151565510 is 155651511.

1151565510 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1151565510² = 2652206247643120200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 921366 + ... + 922614.

It is an arithmetic number, because the mean of its divisors is an integer number (43914375).

Almost surely, 2^1151565510 is an apocalyptic number.

1151565510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151565510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405260000).

1151565510 is an abundant number, since it is smaller than the sum of its proper divisors (1658954490).

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

1151565510 is a wasteful number, since it uses less digits than its factorization.

1151565510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 1151565510 is about 33934.7242511266. The cubic root of 1151565510 is about 1048.1647487583.

The spelling of 1151565510 in words is "one billion, one hundred fifty-one million, five hundred sixty-five thousand, five hundred ten".