1663890164154 has 24 divisors (see below), whose sum is σ = 3666198669120. Its totient is φ = 545229544968.

The previous prime is 1663890164143. The next prime is 1663890164231. The reversal of 1663890164154 is 4514610983661.

1663890164154 is a `hidden beast` number, since 166 + 389 + 0 + 16 + 41 + 54 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1663890164154.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 783374722 + ... + 783376845.

It is an arithmetic number, because the mean of its divisors is an integer number (152758277880).

Almost surely, 2^{1663890164154} is an apocalyptic number.

1663890164154 is an abundant number, since it is smaller than the sum of its proper divisors (2002308504966).

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

1663890164154 is a wasteful number, since it uses less digits than its factorization.

1663890164154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566751634 (or 1566751631 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 1663890164154 in words is "one trillion, six hundred sixty-three billion, eight hundred ninety million, one hundred sixty-four thousand, one hundred fifty-four".