20606206011530 has 16 divisors (see below), whose sum is σ = 37250360399304. Its totient is φ = 8207106942720.

The previous prime is 20606206011497. The next prime is 20606206011551. The reversal of 20606206011530 is 3511060260602.

It can be written as a sum of positive squares in 4 ways, for example, as 13660024226809 + 6946181784721 = 3695947^2 + 2635561^2 .

It is a super-2 number, since 2×20606206011530² (a number of 27 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, 4421930291 + ... + 4421934950.

Almost surely, 2^{20606206011530} is an apocalyptic number.

20606206011530 is a deficient number, since it is larger than the sum of its proper divisors (16644154387774).

20606206011530 is a wasteful number, since it uses less digits than its factorization.

20606206011530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8843865481.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 20606206011530 in words is "twenty trillion, six hundred six billion, two hundred six million, eleven thousand, five hundred thirty".