20135040157634 has 16 divisors (see below), whose sum is σ = 30586633758720. Its totient is φ = 9939510260160.

The previous prime is 20135040157627. The next prime is 20135040157667. The reversal of 20135040157634 is 43675104053102.

It is a junction number, because it is equal to n+sod(n) for n = 20135040157591 and 20135040157600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915362 + ... + 6411549.

It is an arithmetic number, because the mean of its divisors is an integer number (1911664609920).

Almost surely, 2^{20135040157634} is an apocalyptic number.

20135040157634 is a deficient number, since it is larger than the sum of its proper divisors (10451593601086).

20135040157634 is a wasteful number, since it uses less digits than its factorization.

20135040157634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7344385.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 20135040157634 in words is "twenty trillion, one hundred thirty-five billion, forty million, one hundred fifty-seven thousand, six hundred thirty-four".