13648620166542 has 24 divisors (see below), whose sum is σ = 31128431959560. Its totient is φ = 4310090578800.

The previous prime is 13648620166537. The next prime is 13648620166547. The reversal of 13648620166542 is 24566102684631.

13648620166542 is a `hidden beast` number, since 1 + 3 + 6 + 4 + 8 + 620 + 1 + 6 + 6 + 5 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (13648620166537) and next prime (13648620166547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13648620166547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19954122709 + ... + 19954123392.

It is an arithmetic number, because the mean of its divisors is an integer number (1297017998315).

Almost surely, 2^{13648620166542} is an apocalyptic number.

13648620166542 is an abundant number, since it is smaller than the sum of its proper divisors (17479811793018).

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

13648620166542 is a wasteful number, since it uses less digits than its factorization.

13648620166542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39908246128 (or 39908246125 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 13648620166542 in words is "thirteen trillion, six hundred forty-eight billion, six hundred twenty million, one hundred sixty-six thousand, five hundred forty-two".