1660616251222 has 8 divisors (see below), whose sum is σ = 2491034560272. Its totient is φ = 830271397800.

The previous prime is 1660616251183. The next prime is 1660616251253. The reversal of 1660616251222 is 2221526160661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18307354 + ... + 18397837.

It is an arithmetic number, because the mean of its divisors is an integer number (311379320034).

Almost surely, 2^{1660616251222} is an apocalyptic number.

1660616251222 is a deficient number, since it is larger than the sum of its proper divisors (830418309050).

1660616251222 is a wasteful number, since it uses less digits than its factorization.

1660616251222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36727814.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 1660616251222 in words is "one trillion, six hundred sixty billion, six hundred sixteen million, two hundred fifty-one thousand, two hundred twenty-two".