90983656154 has 16 divisors (see below), whose sum is σ = 137034713088. Its totient is φ = 45305771472.

The previous prime is 90983656147. The next prime is 90983656157. The reversal of 90983656154 is 45165638909.

It is a self number, because there is not a number n which added to its sum of digits gives 90983656154.

It is not an unprimeable number, because it can be changed into a prime (90983656157) 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 7 ways as a sum of consecutive naturals, for example, 430859 + ... + 606305.

It is an arithmetic number, because the mean of its divisors is an integer number (8564669568).

Almost surely, 2^90983656154 is an apocalyptic number.

90983656154 is a deficient number, since it is larger than the sum of its proper divisors (46051056934).

90983656154 is a wasteful number, since it uses less digits than its factorization.

90983656154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176509.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 90983656154 in words is "ninety billion, nine hundred eighty-three million, six hundred fifty-six thousand, one hundred fifty-four".