162440661 has 8 divisors (see below), whose sum is σ = 229328064. Its totient is φ = 101923520.

The previous prime is 162440657. The next prime is 162440723. The reversal of 162440661 is 166044261.

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 162440661 - 2² = 162440657 is a prime.

It is a super-2 number, since 2×162440661² = 52773936692233842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162440611) 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, 1592505 + ... + 1592606.

It is an arithmetic number, because the mean of its divisors is an integer number (28666008).

Almost surely, 2^162440661 is an apocalyptic number.

It is an amenable number.

162440661 is a deficient number, since it is larger than the sum of its proper divisors (66887403).

162440661 is a wasteful number, since it uses less digits than its factorization.

162440661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185131.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 162440661 is about 12745.2211043983. The cubic root of 162440661 is about 545.6300107133.

The spelling of 162440661 in words is "one hundred sixty-two million, four hundred forty thousand, six hundred sixty-one".