1901168056 has 8 divisors (see below), whose sum is σ = 3564690120. Its totient is φ = 950584024.

The previous prime is 1901168011. The next prime is 1901168057. The reversal of 1901168056 is 6508611091.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1901168056² = 7228879954309638272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901168057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118822996 + ... + 118823011.

It is an arithmetic number, because the mean of its divisors is an integer number (445586265).

Almost surely, 2^1901168056 is an apocalyptic number.

It is an amenable number.

1901168056 is a deficient number, since it is larger than the sum of its proper divisors (1663522064).

1901168056 is a wasteful number, since it uses less digits than its factorization.

1901168056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237646013 (or 237646009 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 1901168056 is about 43602.3858980217. The cubic root of 1901168056 is about 1238.8160864370.

The spelling of 1901168056 in words is "one billion, nine hundred one million, one hundred sixty-eight thousand, fifty-six".