20570006105 has 16 divisors (see below), whose sum is σ = 27554243904. Its totient is φ = 14612095680.

The previous prime is 20570006099. The next prime is 20570006141. The reversal of 20570006105 is 50160007502.

It is not a de Polignac number, because 20570006105 - 2¹² = 20570002009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4346474 + ... + 4351203.

It is an arithmetic number, because the mean of its divisors is an integer number (1722140244).

Almost surely, 2^20570006105 is an apocalyptic number.

It is an amenable number.

20570006105 is a deficient number, since it is larger than the sum of its proper divisors (6984237799).

20570006105 is a wasteful number, since it uses less digits than its factorization.

20570006105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697736.

The product of its (nonzero) digits is 2100, while the sum is 26.

The spelling of 20570006105 in words is "twenty billion, five hundred seventy million, six thousand, one hundred five".