1164964550 has 12 divisors (see below), whose sum is σ = 2166834156. Its totient is φ = 465985800.

The previous prime is 1164964517. The next prime is 1164964571. The reversal of 1164964550 is 554694611.

It is a junction number, because it is equal to n+sod(n) for n = 1164964498 and 1164964507.

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, 11649596 + ... + 11649695.

It is an arithmetic number, because the mean of its divisors is an integer number (180569513).

Almost surely, 2^1164964550 is an apocalyptic number.

1164964550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1164964550 is a deficient number, since it is larger than the sum of its proper divisors (1001869606).

1164964550 is a wasteful number, since it uses less digits than its factorization.

1164964550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23299303 (or 23299298 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1164964550 is about 34131.5770218723. The cubic root of 1164964550 is about 1052.2143894337.

The spelling of 1164964550 in words is "one billion, one hundred sixty-four million, nine hundred sixty-four thousand, five hundred fifty".