221534456134670 has 32 divisors (see below), whose sum is σ = 456102492608448. Its totient is φ = 75892259248128.

The previous prime is 221534456134657. The next prime is 221534456134697. The reversal of 221534456134670 is 76431654435122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300152257 + ... + 1300322636.

It is an arithmetic number, because the mean of its divisors is an integer number (14253202894014).

Almost surely, 2^{221534456134670} is an apocalyptic number.

221534456134670 is an abundant number, since it is smaller than the sum of its proper divisors (234568036473778).

221534456134670 is a wasteful number, since it uses less digits than its factorization.

221534456134670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600476124.

The product of its (nonzero) digits is 14515200, while the sum is 53.

The spelling of 221534456134670 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred fifty-six million, one hundred thirty-four thousand, six hundred seventy".