166334626511400 has 48 divisors (see below), whose sum is σ = 515637342187200. Its totient is φ = 44355900402880.

The previous prime is 166334626511359. The next prime is 166334626511477. The reversal of 166334626511400 is 4115626433661.

It is a happy number.

166334626511400 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166334626511400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138612188160 + ... + 138612189359.

It is an arithmetic number, because the mean of its divisors is an integer number (10742444628900).

Almost surely, 2^{166334626511400} is an apocalyptic number.

166334626511400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166334626511400 is an abundant number, since it is smaller than the sum of its proper divisors (349302715675800).

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

166334626511400 is a wasteful number, since it uses less digits than its factorization.

166334626511400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277224377538 (or 277224377529 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 166334626511400 in words is "one hundred sixty-six trillion, three hundred thirty-four billion, six hundred twenty-six million, five hundred eleven thousand, four hundred".