611221140054 has 32 divisors (see below), whose sum is σ = 1552307658240. Its totient is φ = 174634611336.

The previous prime is 611221140041. The next prime is 611221140059. The reversal of 611221140054 is 450041122116.

611221140054 is a `hidden beast` number, since 611 + 2 + 2 + 1 + 1 + 40 + 0 + 5 + 4 = 666.

It is a super-2 number, since 2×611221140054² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611221140059) 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, 808493194 + ... + 808493949.

It is an arithmetic number, because the mean of its divisors is an integer number (48509614320).

Almost surely, 2^611221140054 is an apocalyptic number.

611221140054 is an abundant number, since it is smaller than the sum of its proper divisors (941086518186).

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

611221140054 is a wasteful number, since it uses less digits than its factorization.

611221140054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616987161 (or 1616987155 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 611221140054 in words is "six hundred eleven billion, two hundred twenty-one million, one hundred forty thousand, fifty-four".