1667464572 has 48 divisors (see below), whose sum is σ = 3943425920. Its totient is φ = 548347968.

The previous prime is 1667464559. The next prime is 1667464597. The reversal of 1667464572 is 2754647661.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 268818 + ... + 274950.

Almost surely, 2^1667464572 is an apocalyptic number.

1667464572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1667464572 is an abundant number, since it is smaller than the sum of its proper divisors (2275961348).

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

1667464572 is a wasteful number, since it uses less digits than its factorization.

1667464572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442 (or 6440 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

The square root of 1667464572 is about 40834.6001817086. The cubic root of 1667464572 is about 1185.8202755871.

The spelling of 1667464572 in words is "one billion, six hundred sixty-seven million, four hundred sixty-four thousand, five hundred seventy-two".