16135993434 has 32 divisors (see below), whose sum is σ = 35307311616. Its totient is φ = 4875596720.

The previous prime is 16135993429. The next prime is 16135993457. The reversal of 16135993434 is 43439953161.

It is a super-2 number, since 2×16135993434² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329382 + ... + 375185.

It is an arithmetic number, because the mean of its divisors is an integer number (1103353488).

Almost surely, 2^16135993434 is an apocalyptic number.

16135993434 is an abundant number, since it is smaller than the sum of its proper divisors (19171318182).

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

16135993434 is a wasteful number, since it uses less digits than its factorization.

16135993434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704930.

The product of its digits is 1049760, while the sum is 48.

The spelling of 16135993434 in words is "sixteen billion, one hundred thirty-five million, nine hundred ninety-three thousand, four hundred thirty-four".