20135153551434 has 64 divisors (see below), whose sum is σ = 42066412535808. Its totient is φ = 6412997448000.

The previous prime is 20135153551309. The next prime is 20135153551483. The reversal of 20135153551434 is 43415535153102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1012264629 + ... + 1012284519.

It is an arithmetic number, because the mean of its divisors is an integer number (657287695872).

Almost surely, 2^{20135153551434} is an apocalyptic number.

20135153551434 is an abundant number, since it is smaller than the sum of its proper divisors (21931258984374).

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

20135153551434 is a wasteful number, since it uses less digits than its factorization.

20135153551434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27443.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 20135153551434 in words is "twenty trillion, one hundred thirty-five billion, one hundred fifty-three million, five hundred fifty-one thousand, four hundred thirty-four".