1661224146270 has 64 divisors (see below), whose sum is σ = 4294224777024. Its totient is φ = 408859637760.

The previous prime is 1661224146227. The next prime is 1661224146287. The reversal of 1661224146270 is 726414221661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2535030 + ... + 3122310.

It is an arithmetic number, because the mean of its divisors is an integer number (67097262141).

Almost surely, 2^{1661224146270} is an apocalyptic number.

1661224146270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1661224146270 is an abundant number, since it is smaller than the sum of its proper divisors (2633000630754).

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

1661224146270 is a wasteful number, since it uses less digits than its factorization.

1661224146270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594557.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 1661224146270 in words is "one trillion, six hundred sixty-one billion, two hundred twenty-four million, one hundred forty-six thousand, two hundred seventy".