1662025662 has 32 divisors (see below), whose sum is σ = 4029154560. Its totient is φ = 503643960.

The previous prime is 1662025643. The next prime is 1662025669. The reversal of 1662025662 is 2665202661.

1662025662 is a `hidden beast` number, since 1 + 6 + 620 + 25 + 6 + 6 + 2 = 666.

It is a super-2 number, since 2×1662025662² = 5524658602293076488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662025669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398418 + ... + 1399605.

It is an arithmetic number, because the mean of its divisors is an integer number (125911080).

Almost surely, 2^1662025662 is an apocalyptic number.

1662025662 is an abundant number, since it is smaller than the sum of its proper divisors (2367128898).

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

1662025662 is a wasteful number, since it uses less digits than its factorization.

1662025662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798045 (or 2798039 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1662025662 is about 40767.9489550308. The cubic root of 1662025662 is about 1184.5295745298.

The spelling of 1662025662 in words is "one billion, six hundred sixty-two million, twenty-five thousand, six hundred sixty-two".