1165465630 has 64 divisors (see below), whose sum is σ = 2487024000. Its totient is φ = 384749568.

The previous prime is 1165465619. The next prime is 1165465649. The reversal of 1165465630 is 365645611.

It is a super-2 number, since 2×1165465630² = 2716620269422593800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1165465630.

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, 1154566 + ... + 1155574.

It is an arithmetic number, because the mean of its divisors is an integer number (38859750).

Almost surely, 2^1165465630 is an apocalyptic number.

1165465630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165465630 is an abundant number, since it is smaller than the sum of its proper divisors (1321558370).

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

1165465630 is a wasteful number, since it uses less digits than its factorization.

1165465630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1165465630 is about 34138.9166494779. The cubic root of 1165465630 is about 1052.3652289337.

It can be divided in two parts, 11654 and 65630, that added together give a square (77284 = 278²).

The spelling of 1165465630 in words is "one billion, one hundred sixty-five million, four hundred sixty-five thousand, six hundred thirty".