16253412555 has 16 divisors (see below), whose sum is σ = 26069052960. Its totient is φ = 8647289088.

The previous prime is 16253412509. The next prime is 16253412559. The reversal of 16253412555 is 55521435261.

It is not a de Polignac number, because 16253412555 - 2¹⁴ = 16253396171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16253412559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1318512 + ... + 1330781.

It is an arithmetic number, because the mean of its divisors is an integer number (1629315810).

Almost surely, 2^16253412555 is an apocalyptic number.

16253412555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16253412555 is a deficient number, since it is larger than the sum of its proper divisors (9815640405).

16253412555 is a wasteful number, since it uses less digits than its factorization.

16253412555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649710.

The product of its digits is 180000, while the sum is 39.

The spelling of 16253412555 in words is "sixteen billion, two hundred fifty-three million, four hundred twelve thousand, five hundred fifty-five".