1572072664 has 8 divisors (see below), whose sum is σ = 2947636260. Its totient is φ = 786036328.

The previous prime is 1572072661. The next prime is 1572072707. The reversal of 1572072664 is 4662702751.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572072661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98254534 + ... + 98254549.

Almost surely, 2^1572072664 is an apocalyptic number.

It is an amenable number.

1572072664 is a deficient number, since it is larger than the sum of its proper divisors (1375563596).

1572072664 is a wasteful number, since it uses less digits than its factorization.

1572072664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196509089 (or 196509085 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1572072664 is about 39649.3715460914. The cubic root of 1572072664 is about 1162.7621118450.

The spelling of 1572072664 in words is "one billion, five hundred seventy-two million, seventy-two thousand, six hundred sixty-four".