1564160972 has 12 divisors (see below), whose sum is σ = 2986125576. Its totient is φ = 710982240.

The previous prime is 1564160971. The next prime is 1564160993. The reversal of 1564160972 is 2790614651.

It is not an unprimeable number, because it can be changed into a prime (1564160971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17774513 + ... + 17774600.

It is an arithmetic number, because the mean of its divisors is an integer number (248843798).

Almost surely, 2^1564160972 is an apocalyptic number.

It is an amenable number.

1564160972 is a deficient number, since it is larger than the sum of its proper divisors (1421964604).

1564160972 is a wasteful number, since it uses less digits than its factorization.

1564160972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35549128 (or 35549126 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1564160972 is about 39549.4749901942. The cubic root of 1564160972 is about 1160.8082387442.

The spelling of 1564160972 in words is "one billion, five hundred sixty-four million, one hundred sixty thousand, nine hundred seventy-two".