90155336747 has 16 divisors (see below), whose sum is σ = 104755951872. Its totient is φ = 75989089440.

The previous prime is 90155336731. The next prime is 90155336767. The reversal of 90155336747 is 74763355109.

It is a cyclic number.

It is not a de Polignac number, because 90155336747 - 2⁴ = 90155336731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90155336695 and 90155336704.

It is not an unprimeable number, because it can be changed into a prime (90155336767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99473 + ... + 436125.

It is an arithmetic number, because the mean of its divisors is an integer number (6547246992).

Almost surely, 2^90155336747 is an apocalyptic number.

90155336747 is a deficient number, since it is larger than the sum of its proper divisors (14600615125).

90155336747 is a wasteful number, since it uses less digits than its factorization.

90155336747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337298.

The product of its (nonzero) digits is 2381400, while the sum is 50.

The spelling of 90155336747 in words is "ninety billion, one hundred fifty-five million, three hundred thirty-six thousand, seven hundred forty-seven".