1572056509605 has 32 divisors (see below), whose sum is σ = 2647785008640. Its totient is φ = 794268970560.

The previous prime is 1572056509603. The next prime is 1572056509613. The reversal of 1572056509605 is 5069056502751.

It is not a de Polignac number, because 1572056509605 - 2¹ = 1572056509603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572056509603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7605270 + ... + 7809240.

It is an arithmetic number, because the mean of its divisors is an integer number (82743281520).

Almost surely, 2^{1572056509605} is an apocalyptic number.

1572056509605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1572056509605 is a deficient number, since it is larger than the sum of its proper divisors (1075728499035).

1572056509605 is a wasteful number, since it uses less digits than its factorization.

1572056509605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231041.

The product of its (nonzero) digits is 2835000, while the sum is 51.

The spelling of 1572056509605 in words is "one trillion, five hundred seventy-two billion, fifty-six million, five hundred nine thousand, six hundred five".