1166201564 has 24 divisors (see below), whose sum is σ = 2357350128. Its totient is φ = 498909440.

The previous prime is 1166201549. The next prime is 1166201579. The reversal of 1166201564 is 4651026611.

It is an interprime number because it is at equal distance from previous prime (1166201549) and next prime (1166201579).

It is a self number, because there is not a number n which added to its sum of digits gives 1166201564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778799 + ... + 780294.

It is an arithmetic number, because the mean of its divisors is an integer number (98222922).

Almost surely, 2^1166201564 is an apocalyptic number.

It is an amenable number.

1166201564 is an abundant number, since it is smaller than the sum of its proper divisors (1191148564).

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

1166201564 is a wasteful number, since it uses less digits than its factorization.

1166201564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559125 (or 1559123 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1166201564 is about 34149.6934686096. The cubic root of 1166201564 is about 1052.5866878872.

The spelling of 1166201564 in words is "one billion, one hundred sixty-six million, two hundred one thousand, five hundred sixty-four".