164887455 has 8 divisors (see below), whose sum is σ = 263819952. Its totient is φ = 87939968.

The previous prime is 164887451. The next prime is 164887501. The reversal of 164887455 is 554788461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164887455 - 2² = 164887451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164887451) 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, 5496234 + ... + 5496263.

It is an arithmetic number, because the mean of its divisors is an integer number (32977494).

Almost surely, 2^164887455 is an apocalyptic number.

164887455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164887455 is a deficient number, since it is larger than the sum of its proper divisors (98932497).

164887455 is a wasteful number, since it uses less digits than its factorization.

164887455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10992505.

The product of its digits is 1075200, while the sum is 48.

The square root of 164887455 is about 12840.8510231994. The cubic root of 164887455 is about 548.3559223230.

The spelling of 164887455 in words is "one hundred sixty-four million, eight hundred eighty-seven thousand, four hundred fifty-five".