1606109131245 has 16 divisors (see below), whose sum is σ = 2632452040512. Its totient is φ = 835699059840.

The previous prime is 1606109131217. The next prime is 1606109131247. The reversal of 1606109131245 is 5421319016061.

It is not a de Polignac number, because 1606109131245 - 2¹² = 1606109127149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606109131247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305779167 + ... + 1305780396.

It is an arithmetic number, because the mean of its divisors is an integer number (164528252532).

Almost surely, 2^{1606109131245} is an apocalyptic number.

1606109131245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1606109131245 is a deficient number, since it is larger than the sum of its proper divisors (1026342909267).

1606109131245 is a wasteful number, since it uses less digits than its factorization.

1606109131245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611559612.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 1606109131245 in words is "one trillion, six hundred six billion, one hundred nine million, one hundred thirty-one thousand, two hundred forty-five".