21160150406 has 4 divisors (see below), whose sum is σ = 31740225612. Its totient is φ = 10580075202.

The previous prime is 21160150399. The next prime is 21160150421. The reversal of 21160150406 is 60405106112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5290037600 + ... + 5290037603.

It is an arithmetic number, because the mean of its divisors is an integer number (7935056403).

Almost surely, 2^21160150406 is an apocalyptic number.

21160150406 is a deficient number, since it is larger than the sum of its proper divisors (10580075206).

21160150406 is a wasteful number, since it uses less digits than its factorization.

21160150406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10580075205.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 21160150406 its reverse (60405106112), we get a palindrome (81565256518).

The spelling of 21160150406 in words is "twenty-one billion, one hundred sixty million, one hundred fifty thousand, four hundred six".