102099666618942 has 32 divisors (see below), whose sum is σ = 214963207319808. Its totient is φ = 32265432667776.

The previous prime is 102099666618853. The next prime is 102099666618953. The reversal of 102099666618942 is 249816666990201.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3273668728 + ... + 3273699915.

It is an arithmetic number, because the mean of its divisors is an integer number (6717600228744).

Almost surely, 2^{102099666618942} is an apocalyptic number.

102099666618942 is an abundant number, since it is smaller than the sum of its proper divisors (112863540700866).

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

102099666618942 is a wasteful number, since it uses less digits than its factorization.

102099666618942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547368784.

The product of its (nonzero) digits is 120932352, while the sum is 69.

The spelling of 102099666618942 in words is "one hundred two trillion, ninety-nine billion, six hundred sixty-six million, six hundred eighteen thousand, nine hundred forty-two".