164987853795 has 48 divisors (see below), whose sum is σ = 293635165824. Its totient is φ = 85647744000.

The previous prime is 164987853763. The next prime is 164987853809. The reversal of 164987853795 is 597358789461.

164987853795 is a `hidden beast` number, since 1 + 6 + 4 + 9 + 87 + 8 + 537 + 9 + 5 = 666.

It is not a de Polignac number, because 164987853795 - 2⁵ = 164987853763 is a prime.

It is a super-3 number, since 3×164987853795³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 691455 + ... + 898935.

It is an arithmetic number, because the mean of its divisors is an integer number (6117399288).

Almost surely, 2^164987853795 is an apocalyptic number.

164987853795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164987853795 is a deficient number, since it is larger than the sum of its proper divisors (128647312029).

164987853795 is a wasteful number, since it uses less digits than its factorization.

164987853795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207964 (or 207961 counting only the distinct ones).

The product of its digits is 457228800, while the sum is 72.

The spelling of 164987853795 in words is "one hundred sixty-four billion, nine hundred eighty-seven million, eight hundred fifty-three thousand, seven hundred ninety-five".