90156998148 has 48 divisors (see below), whose sum is σ = 241416303744. Its totient is φ = 25652252160.

The previous prime is 90156998143. The next prime is 90156998159. The reversal of 90156998148 is 84189965109.

It is a junction number, because it is equal to n+sod(n) for n = 90156998091 and 90156998100.

It is not an unprimeable number, because it can be changed into a prime (90156998143) 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 15 ways as a sum of consecutive naturals, for example, 2206515 + ... + 2247002.

It is an arithmetic number, because the mean of its divisors is an integer number (5029506328).

Almost surely, 2^90156998148 is an apocalyptic number.

It is an amenable number.

90156998148 is an abundant number, since it is smaller than the sum of its proper divisors (151259305596).

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

90156998148 is a wasteful number, since it uses less digits than its factorization.

90156998148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453772 (or 4453770 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 60.

The spelling of 90156998148 in words is "ninety billion, one hundred fifty-six million, nine hundred ninety-eight thousand, one hundred forty-eight".