1521624420166 has 8 divisors (see below), whose sum is σ = 2285964354960. Its totient is φ = 759636301848.

The previous prime is 1521624420163. The next prime is 1521624420187. The reversal of 1521624420166 is 6610244261251.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521624420163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587952501 + ... + 587955088.

It is an arithmetic number, because the mean of its divisors is an integer number (285745544370).

Almost surely, 2^{1521624420166} is an apocalyptic number.

1521624420166 is a deficient number, since it is larger than the sum of its proper divisors (764339934794).

1521624420166 is a wasteful number, since it uses less digits than its factorization.

1521624420166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175908238.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 1521624420166 in words is "one trillion, five hundred twenty-one billion, six hundred twenty-four million, four hundred twenty thousand, one hundred sixty-six".