61170221454 has 16 divisors (see below), whose sum is σ = 122342987520. Its totient is φ = 20389649720.

The previous prime is 61170221351. The next prime is 61170221471. The reversal of 61170221454 is 45412207116.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372889 + ... + 511259.

It is an arithmetic number, because the mean of its divisors is an integer number (7646436720).

Almost surely, 2^61170221454 is an apocalyptic number.

61170221454 is an abundant number, since it is smaller than the sum of its proper divisors (61172766066).

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

61170221454 is a wasteful number, since it uses less digits than its factorization.

61170221454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212055.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 61170221454 in words is "sixty-one billion, one hundred seventy million, two hundred twenty-one thousand, four hundred fifty-four".