4020101656 has 16 divisors (see below), whose sum is σ = 7981084440. Its totient is φ = 1891812480.

The previous prime is 4020101653. The next prime is 4020101671. The reversal of 4020101656 is 6561010204.

It is a super-2 number, since 2×4020101656² = 32322434649147884672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4020101656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020101653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14779650 + ... + 14779921.

Almost surely, 2^4020101656 is an apocalyptic number.

It is an amenable number.

4020101656 is a deficient number, since it is larger than the sum of its proper divisors (3960982784).

4020101656 is a wasteful number, since it uses less digits than its factorization.

4020101656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29559594 (or 29559590 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 4020101656 is about 63404.2715911160. The cubic root of 4020101656 is about 1590.0557258003.

The spelling of 4020101656 in words is "four billion, twenty million, one hundred one thousand, six hundred fifty-six".