20507343106 has 16 divisors (see below), whose sum is σ = 31346279424. Its totient is φ = 10058643504.

The previous prime is 20507343097. The next prime is 20507343119. The reversal of 20507343106 is 60134370502.

It is a super-2 number, since 2×20507343106² (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, 980005 + ... + 1000711.

It is an arithmetic number, because the mean of its divisors is an integer number (1959142464).

Almost surely, 2^20507343106 is an apocalyptic number.

20507343106 is a deficient number, since it is larger than the sum of its proper divisors (10838936318).

20507343106 is a wasteful number, since it uses less digits than its factorization.

20507343106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30105.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 20507343106 in words is "twenty billion, five hundred seven million, three hundred forty-three thousand, one hundred six".