1970567664 has 40 divisors (see below), whose sum is σ = 5482222032. Its totient is φ = 606328320.

The previous prime is 1970567659. The next prime is 1970567681. The reversal of 1970567664 is 4667650791.

It is a happy number.

It is a congruent number.

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, 1578357 + ... + 1579604.

Almost surely, 2^1970567664 is an apocalyptic number.

It is an amenable number.

1970567664 is an abundant number, since it is smaller than the sum of its proper divisors (3511654368).

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

1970567664 is a wasteful number, since it uses less digits than its factorization.

1970567664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157985 (or 3157979 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 1970567664 is about 44391.0764005560. The cubic root of 1970567664 is about 1253.7100790098.

The spelling of 1970567664 in words is "one billion, nine hundred seventy million, five hundred sixty-seven thousand, six hundred sixty-four".