20534370107 has 4 divisors (see below), whose sum is σ = 20726280216. Its totient is φ = 20342460000.

The previous prime is 20534370079. The next prime is 20534370121. The reversal of 20534370107 is 70107343502.

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

It is a cyclic number.

It is not a de Polignac number, because 20534370107 - 2¹⁸ = 20534107963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20534370167) 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, 95954894 + ... + 95955107.

It is an arithmetic number, because the mean of its divisors is an integer number (5181570054).

Almost surely, 2^20534370107 is an apocalyptic number.

20534370107 is a deficient number, since it is larger than the sum of its proper divisors (191910109).

20534370107 is a wasteful number, since it uses less digits than its factorization.

20534370107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191910108.

The product of its (nonzero) digits is 17640, while the sum is 32.

The spelling of 20534370107 in words is "twenty billion, five hundred thirty-four million, three hundred seventy thousand, one hundred seven".