21014626145 has 8 divisors (see below), whose sum is σ = 26544791040. Its totient is φ = 15926874480.

The previous prime is 21014626133. The next prime is 21014626187. The reversal of 21014626145 is 54162641012.

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

It is not a de Polignac number, because 21014626145 - 2⁶ = 21014626081 is a prime.

It is a super-2 number, since 2×21014626145² (a number of 21 digits) contains 22 as substring.

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, 110603201 + ... + 110603390.

It is an arithmetic number, because the mean of its divisors is an integer number (3318098880).

Almost surely, 2^21014626145 is an apocalyptic number.

It is an amenable number.

21014626145 is a deficient number, since it is larger than the sum of its proper divisors (5530164895).

21014626145 is a wasteful number, since it uses less digits than its factorization.

21014626145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221206615.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 21014626145 in words is "twenty-one billion, fourteen million, six hundred twenty-six thousand, one hundred forty-five".