16121178006 has 16 divisors (see below), whose sum is σ = 32247964848. Its totient is φ = 5372791200.

The previous prime is 16121177971. The next prime is 16121178037. The reversal of 16121178006 is 60087112161.

It is a happy number.

It is a super-2 number, since 2×16121178006² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195865 + ... + 265716.

It is an arithmetic number, because the mean of its divisors is an integer number (2015497803).

Almost surely, 2^16121178006 is an apocalyptic number.

16121178006 is an abundant number, since it is smaller than the sum of its proper divisors (16126786842).

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

16121178006 is a wasteful number, since it uses less digits than its factorization.

16121178006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467407.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 16121178006 in words is "sixteen billion, one hundred twenty-one million, one hundred seventy-eight thousand, six".