20153135079 has 72 divisors (see below), whose sum is σ = 37002066192. Its totient is φ = 10451911680.

The previous prime is 20153135059. The next prime is 20153135089. The reversal of 20153135079 is 97053135102.

20153135079 is a `hidden beast` number, since 2 + 0 + 1 + 531 + 3 + 50 + 79 = 666.

It is not a de Polignac number, because 20153135079 - 2¹¹ = 20153133031 is a prime.

It is a super-2 number, since 2×20153135079² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153135059) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3261637 + ... + 3267809.

It is an arithmetic number, because the mean of its divisors is an integer number (513917586).

Almost surely, 2^20153135079 is an apocalyptic number.

20153135079 is a deficient number, since it is larger than the sum of its proper divisors (16848931113).

20153135079 is a wasteful number, since it uses less digits than its factorization.

20153135079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6877 (or 6867 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The spelling of 20153135079 in words is "twenty billion, one hundred fifty-three million, one hundred thirty-five thousand, seventy-nine".