618072156 has 36 divisors (see below), whose sum is σ = 1682531032. Its totient is φ = 190175904.

The previous prime is 618072151. The next prime is 618072173. The reversal of 618072156 is 651270816.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 618072156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618072151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 659866 + ... + 660801.

Almost surely, 2^618072156 is an apocalyptic number.

It is an amenable number.

618072156 is an abundant number, since it is smaller than the sum of its proper divisors (1064458876).

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

618072156 is a wasteful number, since it uses less digits than its factorization.

618072156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320690 (or 1320685 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 618072156 is about 24861.0570169492. The cubic root of 618072156 is about 851.8171762717.

The spelling of 618072156 in words is "six hundred eighteen million, seventy-two thousand, one hundred fifty-six".