122561554630 has 32 divisors (see below), whose sum is σ = 222861551904. Its totient is φ = 48525232896.

The previous prime is 122561554571. The next prime is 122561554667. The reversal of 122561554630 is 36455165221.

It is a congruent number.

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, 1228504 + ... + 1324516.

It is an arithmetic number, because the mean of its divisors is an integer number (6964423497).

Almost surely, 2^122561554630 is an apocalyptic number.

122561554630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122561554630 is a deficient number, since it is larger than the sum of its proper divisors (100299997274).

122561554630 is a wasteful number, since it uses less digits than its factorization.

122561554630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97320.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 122561554630 in words is "one hundred twenty-two billion, five hundred sixty-one million, five hundred fifty-four thousand, six hundred thirty".