162664540 has 24 divisors (see below), whose sum is σ = 344981952. Its totient is φ = 64420800.

The previous prime is 162664531. The next prime is 162664547. The reversal of 162664540 is 45466261.

162664540 = T₁₇₄₄ + T₁₇₄₅ + ... + T₁₈₄₄.

It is a junction number, because it is equal to n+sod(n) for n = 162664496 and 162664505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162664547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38244 + ... + 42283.

It is an arithmetic number, because the mean of its divisors is an integer number (14374248).

Almost surely, 2^162664540 is an apocalyptic number.

162664540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162664540 is an abundant number, since it is smaller than the sum of its proper divisors (182317412).

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

162664540 is a wasteful number, since it uses less digits than its factorization.

162664540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80637 (or 80635 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 162664540 is about 12754.0009408813. Note that the first 3 decimals coincide. The cubic root of 162664540 is about 545.8805617442.

It can be divided in two parts, 1626 and 64540, that added together give a palindrome (66166).

The spelling of 162664540 in words is "one hundred sixty-two million, six hundred sixty-four thousand, five hundred forty".