2052667664 has 10 divisors (see below), whose sum is σ = 3977043630. Its totient is φ = 1026333824.

The previous prime is 2052667633. The next prime is 2052667681. The reversal of 2052667664 is 4667662502.

It can be written as a sum of positive squares in only one way, i.e., 1259682064 + 792985600 = 35492^2 + 28160^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64145849 + ... + 64145880.

It is an arithmetic number, because the mean of its divisors is an integer number (397704363).

Almost surely, 2^2052667664 is an apocalyptic number.

It is an amenable number.

2052667664 is a deficient number, since it is larger than the sum of its proper divisors (1924375966).

2052667664 is a wasteful number, since it uses less digits than its factorization.

2052667664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128291737 (or 128291731 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The square root of 2052667664 is about 45306.3755336928. The cubic root of 2052667664 is about 1270.8848823059.

The spelling of 2052667664 in words is "two billion, fifty-two million, six hundred sixty-seven thousand, six hundred sixty-four".