1600540131531 has 16 divisors (see below), whose sum is σ = 2334136872960. Its totient is φ = 967491613920.

The previous prime is 1600540131511. The next prime is 1600540131557. The reversal of 1600540131531 is 1351310450061.

It is not a de Polignac number, because 1600540131531 - 2¹³ = 1600540123339 is a prime.

It is a super-2 number, since 2×1600540131531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1600540131511) 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, 63304876 + ... + 63330153.

It is an arithmetic number, because the mean of its divisors is an integer number (145883554560).

Almost surely, 2^{1600540131531} is an apocalyptic number.

1600540131531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1600540131531 is a deficient number, since it is larger than the sum of its proper divisors (733596741429).

1600540131531 is a wasteful number, since it uses less digits than its factorization.

1600540131531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126635426.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 1600540131531 its reverse (1351310450061), we get a palindrome (2951850581592).

The spelling of 1600540131531 in words is "one trillion, six hundred billion, five hundred forty million, one hundred thirty-one thousand, five hundred thirty-one".