30253155690 has 32 divisors (see below), whose sum is σ = 72612455040. Its totient is φ = 8066965824.

The previous prime is 30253155677. The next prime is 30253155721. The reversal of 30253155690 is 9655135203.

It is a super-2 number, since 2×30253155690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638292 + ... + 684048.

It is an arithmetic number, because the mean of its divisors is an integer number (2269139220).

Almost surely, 2^30253155690 is an apocalyptic number.

30253155690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30253155690 is an abundant number, since it is smaller than the sum of its proper divisors (42359299350).

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

30253155690 is a wasteful number, since it uses less digits than its factorization.

30253155690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67806.

The product of its (nonzero) digits is 121500, while the sum is 39.

The spelling of 30253155690 in words is "thirty billion, two hundred fifty-three million, one hundred fifty-five thousand, six hundred ninety".