1616405572 has 12 divisors (see below), whose sum is σ = 2875082476. Its totient is φ = 794953440.

The previous prime is 1616405533. The next prime is 1616405653. The reversal of 1616405572 is 2755046161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 457275456 + 1159130116 = 21384^2 + 34046^2 .

It is a super-2 number, since 2×1616405572² = 5225533946385294368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3312063 + ... + 3312550.

Almost surely, 2^1616405572 is an apocalyptic number.

It is an amenable number.

1616405572 is a deficient number, since it is larger than the sum of its proper divisors (1258676904).

1616405572 is a wasteful number, since it uses less digits than its factorization.

1616405572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624678 (or 6624676 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1616405572 is about 40204.5466583072. The cubic root of 1616405572 is about 1173.5910250625.

The spelling of 1616405572 in words is "one billion, six hundred sixteen million, four hundred five thousand, five hundred seventy-two".