13516055061531 has 64 divisors (see below), whose sum is σ = 21172085544960. Its totient is φ = 7577910581760.

The previous prime is 13516055061473. The next prime is 13516055061557.

13516055061531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13516055061531 - 2¹³ = 13516055053339 is a prime.

It is a super-2 number, since 2×13516055061531² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13516055061581) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 260363880 + ... + 260415786.

It is an arithmetic number, because the mean of its divisors is an integer number (330813836640).

Almost surely, 2^{13516055061531} is an apocalyptic number.

13516055061531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13516055061531 is a deficient number, since it is larger than the sum of its proper divisors (7656030483429).

13516055061531 is a wasteful number, since it uses less digits than its factorization.

13516055061531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59864.

The product of its (nonzero) digits is 202500, while the sum is 42.

The spelling of 13516055061531 in words is "thirteen trillion, five hundred sixteen billion, fifty-five million, sixty-one thousand, five hundred thirty-one".