60220523666 has 4 divisors (see below), whose sum is σ = 90330785502. Its totient is φ = 30110261832.

The previous prime is 60220523663. The next prime is 60220523681. The reversal of 60220523666 is 66632502206.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60182393041 + 38130625 = 245321^2 + 6175^2 .

It is a super-2 number, since 2×60220523666² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (60220523663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15055130915 + ... + 15055130918.

Almost surely, 2^60220523666 is an apocalyptic number.

60220523666 is a deficient number, since it is larger than the sum of its proper divisors (30110261836).

60220523666 is a wasteful number, since it uses less digits than its factorization.

60220523666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30110261835.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 60220523666 in words is "sixty billion, two hundred twenty million, five hundred twenty-three thousand, six hundred sixty-six".