161615006 has 8 divisors (see below), whose sum is σ = 277054320. Its totient is φ = 69263568.

The previous prime is 161614963. The next prime is 161615017. The reversal of 161615006 is 600516161.

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

It is a super-2 number, since 2×161615006² = 52238820328760072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5771951 + ... + 5771978.

It is an arithmetic number, because the mean of its divisors is an integer number (34631790).

Almost surely, 2^161615006 is an apocalyptic number.

161615006 is a deficient number, since it is larger than the sum of its proper divisors (115439314).

161615006 is a wasteful number, since it uses less digits than its factorization.

161615006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11543938.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 161615006 is about 12712.7890724262. The cubic root of 161615006 is about 544.7039954767.

The spelling of 161615006 in words is "one hundred sixty-one million, six hundred fifteen thousand, six".