1520564464 has 40 divisors (see below), whose sum is σ = 3001749840. Its totient is φ = 746009088.

The previous prime is 1520564459. The next prime is 1520564467. The reversal of 1520564464 is 4644650251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520564467) 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, 285732 + ... + 291004.

It is an arithmetic number, because the mean of its divisors is an integer number (75043746).

Almost surely, 2^1520564464 is an apocalyptic number.

It is an amenable number.

1520564464 is a deficient number, since it is larger than the sum of its proper divisors (1481185376).

1520564464 is a wasteful number, since it uses less digits than its factorization.

1520564464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617 (or 5611 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 1520564464 is about 38994.4158053432. The cubic root of 1520564464 is about 1149.9217247290.

It can be divided in two parts, 152056 and 4464, that added together give a triangular number (156520 = T₅₅₉).

The spelling of 1520564464 in words is "one billion, five hundred twenty million, five hundred sixty-four thousand, four hundred sixty-four".