2155914650 has 24 divisors (see below), whose sum is σ = 4103261184. Its totient is φ = 842310000.

The previous prime is 2155914599. The next prime is 2155914679. The reversal of 2155914650 is 564195512.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499226 + ... + 503525.

It is an arithmetic number, because the mean of its divisors is an integer number (170969216).

Almost surely, 2^2155914650 is an apocalyptic number.

2155914650 is a deficient number, since it is larger than the sum of its proper divisors (1947346534).

2155914650 is a wasteful number, since it uses less digits than its factorization.

2155914650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002806 (or 1002801 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 2155914650 is about 46431.8279846917. The cubic root of 2155914650 is about 1291.8453348871.

The spelling of 2155914650 in words is "two billion, one hundred fifty-five million, nine hundred fourteen thousand, six hundred fifty".