16434915597 has 24 divisors (see below), whose sum is σ = 25418198520. Its totient is φ = 10196229120.

The previous prime is 16434915551. The next prime is 16434915611. The reversal of 16434915597 is 79551943461.

16434915597 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 49 + 1 + 5 + 597 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 26842761 + 16408072836 = 5181^2 + 128094^2 .

It is not a de Polignac number, because 16434915597 - 2⁶ = 16434915533 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434915547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589854 + ... + 617087.

It is an arithmetic number, because the mean of its divisors is an integer number (1059091605).

Almost surely, 2^16434915597 is an apocalyptic number.

16434915597 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16434915597 is a deficient number, since it is larger than the sum of its proper divisors (8983282923).

16434915597 is a wasteful number, since it uses less digits than its factorization.

16434915597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207053 (or 1207050 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 16434915597 in words is "sixteen billion, four hundred thirty-four million, nine hundred fifteen thousand, five hundred ninety-seven".