9554661634 has 32 divisors (see below), whose sum is σ = 16536024576. Its totient is φ = 4055883840.

The previous prime is 9554661601. The next prime is 9554661643. The reversal of 9554661634 is 4361664559.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649084 + ... + 663640.

It is an arithmetic number, because the mean of its divisors is an integer number (516750768).

Almost surely, 2^9554661634 is an apocalyptic number.

9554661634 is a deficient number, since it is larger than the sum of its proper divisors (6981362942).

9554661634 is a wasteful number, since it uses less digits than its factorization.

9554661634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15010.

The product of its digits is 2332800, while the sum is 49.

The square root of 9554661634 is about 97747.9495130205. The cubic root of 9554661634 is about 2121.9660794190.

The spelling of 9554661634 in words is "nine billion, five hundred fifty-four million, six hundred sixty-one thousand, six hundred thirty-four".