1970633664 has 56 divisors (see below), whose sum is σ = 5793303120. Its totient is φ = 656877312.

The previous prime is 1970633663. The next prime is 1970633701. The reversal of 1970633664 is 4663360791.

1970633664 is a `hidden beast` number, since 1 + 9 + 7 + 0 + 633 + 6 + 6 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970633663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568479 + ... + 571934.

Almost surely, 2^1970633664 is an apocalyptic number.

It is an amenable number.

1970633664 is an abundant number, since it is smaller than the sum of its proper divisors (3822669456).

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

1970633664 is a wasteful number, since it uses less digits than its factorization.

1970633664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140434 (or 1140418 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 1970633664 is about 44391.8197869833. The cubic root of 1970633664 is about 1253.7240756435.

The spelling of 1970633664 in words is "one billion, nine hundred seventy million, six hundred thirty-three thousand, six hundred sixty-four".