162661974 has 8 divisors (see below), whose sum is σ = 325323960. Its totient is φ = 54220656.

The previous prime is 162661973. The next prime is 162661979. The reversal of 162661974 is 479166261.

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

162661974 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162661973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13555159 + ... + 13555170.

It is an arithmetic number, because the mean of its divisors is an integer number (40665495).

Almost surely, 2^162661974 is an apocalyptic number.

162661974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

162661974 is a wasteful number, since it uses less digits than its factorization.

162661974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27110334.

The product of its digits is 108864, while the sum is 42.

The square root of 162661974 is about 12753.9003446005. The cubic root of 162661974 is about 545.8776913442.

The spelling of 162661974 in words is "one hundred sixty-two million, six hundred sixty-one thousand, nine hundred seventy-four".