202906421153 has 16 divisors (see below), whose sum is σ = 215551370496. Its totient is φ = 190590459840.

The previous prime is 202906421119. The next prime is 202906421171. The reversal of 202906421153 is 351124609202.

It is a cyclic number.

It is not a de Polignac number, because 202906421153 - 2¹⁸ = 202906159009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202906421453) 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, 742076 + ... + 978002.

It is an arithmetic number, because the mean of its divisors is an integer number (13471960656).

Almost surely, 2^202906421153 is an apocalyptic number.

202906421153 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

202906421153 is a deficient number, since it is larger than the sum of its proper divisors (12644949343).

202906421153 is a wasteful number, since it uses less digits than its factorization.

202906421153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236624.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 202906421153 in words is "two hundred two billion, nine hundred six million, four hundred twenty-one thousand, one hundred fifty-three".