2154563530122 has 16 divisors (see below), whose sum is σ = 4309785322272. Its totient is φ = 718078133040.

The previous prime is 2154563530121. The next prime is 2154563530183. The reversal of 2154563530122 is 2210353654512.

It is not an unprimeable number, because it can be changed into a prime (2154563530121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27385029 + ... + 27463592.

It is an arithmetic number, because the mean of its divisors is an integer number (269361582642).

Almost surely, 2^{2154563530122} is an apocalyptic number.

2154563530122 is an abundant number, since it is smaller than the sum of its proper divisors (2155221792150).

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

2154563530122 is a wasteful number, since it uses less digits than its factorization.

2154563530122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54855173.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 2154563530122 in words is "two trillion, one hundred fifty-four billion, five hundred sixty-three million, five hundred thirty thousand, one hundred twenty-two".