21470060816107 has 4 divisors (see below), whose sum is σ = 21590005290120. Its totient is φ = 21350116342096.

The previous prime is 21470060815999. The next prime is 21470060816129. The reversal of 21470060816107 is 70161806007412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21470060816107 is a prime.

It is a super-2 number, since 2×21470060816107² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21470060816167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59972236738 + ... + 59972237095.

It is an arithmetic number, because the mean of its divisors is an integer number (5397501322530).

Almost surely, 2^{21470060816107} is an apocalyptic number.

21470060816107 is a deficient number, since it is larger than the sum of its proper divisors (119944474013).

21470060816107 is a wasteful number, since it uses less digits than its factorization.

21470060816107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119944474012.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 21470060816107 in words is "twenty-one trillion, four hundred seventy billion, sixty million, eight hundred sixteen thousand, one hundred seven".