101161660515 has 16 divisors (see below), whose sum is σ = 162095655168. Its totient is φ = 53873886176.

The previous prime is 101161660513. The next prime is 101161660517. The reversal of 101161660515 is 515066161101.

It is an interprime number because it is at equal distance from previous prime (101161660513) and next prime (101161660517).

It is a cyclic number.

It is not a de Polignac number, because 101161660515 - 2¹ = 101161660513 is a prime.

It is a super-2 number, since 2×101161660515² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101161660513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4926879 + ... + 4947368.

It is an arithmetic number, because the mean of its divisors is an integer number (10130978448).

Almost surely, 2^101161660515 is an apocalyptic number.

101161660515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101161660515 is a deficient number, since it is larger than the sum of its proper divisors (60933994653).

101161660515 is an equidigital number, since it uses as much as digits as its factorization.

101161660515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874938.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 101161660515 in words is "one hundred one billion, one hundred sixty-one million, six hundred sixty thousand, five hundred fifteen".