1552977966 has 16 divisors (see below), whose sum is σ = 3117420288. Its totient is φ = 515748600.

The previous prime is 1552977961. The next prime is 1552977967. The reversal of 1552977966 is 6697792551.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552977961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475920 + ... + 479171.

It is an arithmetic number, because the mean of its divisors is an integer number (194838768).

Almost surely, 2^1552977966 is an apocalyptic number.

1552977966 is an abundant number, since it is smaller than the sum of its proper divisors (1564442322).

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

1552977966 is a wasteful number, since it uses less digits than its factorization.

1552977966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955367.

The product of its digits is 7144200, while the sum is 57.

The square root of 1552977966 is about 39407.8414278174. The cubic root of 1552977966 is about 1158.0352109112.

The spelling of 1552977966 in words is "one billion, five hundred fifty-two million, nine hundred seventy-seven thousand, nine hundred sixty-six".