4018156604 has 72 divisors (see below), whose sum is σ = 9002953008. Its totient is φ = 1551567360.

The previous prime is 4018156573. The next prime is 4018156607. The reversal of 4018156604 is 4066518104.

It is a super-2 number, since 2×4018156604² = 32291164988537625632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4018156607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235382 + ... + 251874.

It is an arithmetic number, because the mean of its divisors is an integer number (125041014).

Almost surely, 2^4018156604 is an apocalyptic number.

4018156604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4018156604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4501476504).

4018156604 is an abundant number, since it is smaller than the sum of its proper divisors (4984796404).

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

4018156604 is a wasteful number, since it uses less digits than its factorization.

4018156604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16635 (or 16626 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 4018156604 is about 63388.9312419763. The cubic root of 4018156604 is about 1589.7992447245.

The spelling of 4018156604 in words is "four billion, eighteen million, one hundred fifty-six thousand, six hundred four".