1345656564 has 60 divisors (see below), whose sum is σ = 4020363424. Its totient is φ = 384472656.

The previous prime is 1345656553. The next prime is 1345656569. The reversal of 1345656564 is 4656565431.

1345656564 is a `hidden beast` number, since 1 + 34 + 5 + 6 + 56 + 564 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345656569) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 294394 + ... + 298929.

Almost surely, 2^1345656564 is an apocalyptic number.

1345656564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1345656564 is an abundant number, since it is smaller than the sum of its proper divisors (2674706860).

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

1345656564 is a wasteful number, since it uses less digits than its factorization.

1345656564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593346 (or 593335 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The square root of 1345656564 is about 36683.1918458577. The cubic root of 1345656564 is about 1104.0228905934.

The spelling of 1345656564 in words is "one billion, three hundred forty-five million, six hundred fifty-six thousand, five hundred sixty-four".