2154916632 has 32 divisors (see below), whose sum is σ = 5877046080. Its totient is φ = 653004960.

The previous prime is 2154916619. The next prime is 2154916637. The reversal of 2154916632 is 2366194512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154916637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4081018 + ... + 4081545.

It is an arithmetic number, because the mean of its divisors is an integer number (183657690).

Almost surely, 2^2154916632 is an apocalyptic number.

2154916632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2154916632 is an abundant number, since it is smaller than the sum of its proper divisors (3722129448).

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

2154916632 is a wasteful number, since it uses less digits than its factorization.

2154916632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8162583 (or 8162579 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 2154916632 is about 46421.0796082986. The cubic root of 2154916632 is about 1291.6459633745.

The spelling of 2154916632 in words is "two billion, one hundred fifty-four million, nine hundred sixteen thousand, six hundred thirty-two".