4991155152 has 20 divisors (see below), whose sum is σ = 12893817600. Its totient is φ = 1663718368.

The previous prime is 4991155133. The next prime is 4991155157. The reversal of 4991155152 is 2515511994.

It is a super-2 number, since 2×4991155152² = 49823259502672286208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991155157) 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, 51991152 + ... + 51991247.

It is an arithmetic number, because the mean of its divisors is an integer number (644690880).

Almost surely, 2^4991155152 is an apocalyptic number.

It is an amenable number.

4991155152 is an abundant number, since it is smaller than the sum of its proper divisors (7902662448).

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

4991155152 is a wasteful number, since it uses less digits than its factorization.

4991155152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103982410 (or 103982404 counting only the distinct ones).

The product of its digits is 81000, while the sum is 42.

The square root of 4991155152 is about 70648.1079152160. The cubic root of 4991155152 is about 1708.9670530531.

The spelling of 4991155152 in words is "four billion, nine hundred ninety-one million, one hundred fifty-five thousand, one hundred fifty-two".