1640616752 has 40 divisors (see below), whose sum is σ = 3212056320. Its totient is φ = 811736640.

The previous prime is 1640616737. The next prime is 1640616767. The reversal of 1640616752 is 2576160461.

It is an interprime number because it is at equal distance from previous prime (1640616737) and next prime (1640616767).

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, 919253 + ... + 921035.

It is an arithmetic number, because the mean of its divisors is an integer number (80301408).

Almost surely, 2^1640616752 is an apocalyptic number.

It is an amenable number.

1640616752 is a deficient number, since it is larger than the sum of its proper divisors (1571439568).

1640616752 is a wasteful number, since it uses less digits than its factorization.

1640616752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1640616752 is about 40504.5275493987. The cubic root of 1640616752 is about 1179.4215186166.

The spelling of 1640616752 in words is "one billion, six hundred forty million, six hundred sixteen thousand, seven hundred fifty-two".