101816650542 has 64 divisors (see below), whose sum is σ = 216077635584. Its totient is φ = 31927633920.

The previous prime is 101816650541. The next prime is 101816650583. The reversal of 101816650542 is 245056618101.

It is a self number, because there is not a number n which added to its sum of digits gives 101816650542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101816650541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8410638 + ... + 8422734.

It is an arithmetic number, because the mean of its divisors is an integer number (3376213056).

Almost surely, 2^101816650542 is an apocalyptic number.

101816650542 is an abundant number, since it is smaller than the sum of its proper divisors (114260985042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101816650542 is a wasteful number, since it uses less digits than its factorization.

101816650542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13393.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 101816650542 in words is "one hundred one billion, eight hundred sixteen million, six hundred fifty thousand, five hundred forty-two".