1066606674 has 32 divisors (see below), whose sum is σ = 2441788416. Its totient is φ = 304266000.

The previous prime is 1066606643. The next prime is 1066606721. The reversal of 1066606674 is 4766066601.

It is a super-2 number, since 2×1066606674² = 2275299594042684552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7549 + ... + 46799.

It is an arithmetic number, because the mean of its divisors is an integer number (76305888).

Almost surely, 2^1066606674 is an apocalyptic number.

1066606674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1066606674 is an abundant number, since it is smaller than the sum of its proper divisors (1375181742).

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

1066606674 is a wasteful number, since it uses less digits than its factorization.

1066606674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39910.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 1066606674 is about 32658.9447778093. The cubic root of 1066606674 is about 1021.7267541046.

The spelling of 1066606674 in words is "one billion, sixty-six million, six hundred six thousand, six hundred seventy-four".