1666061562 has 32 divisors (see below), whose sum is σ = 3650950080. Its totient is φ = 502657920.

The previous prime is 1666061561. The next prime is 1666061563. The reversal of 1666061562 is 2651606661.

1666061562 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1666061561) and next prime (1666061563).

It is a super-2 number, since 2×1666061562² = 5551522256747759688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1666061562.

It is not an unprimeable number, because it can be changed into a prime (1666061561) 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, 40003 + ... + 70230.

It is an arithmetic number, because the mean of its divisors is an integer number (114092190).

Almost surely, 2^1666061562 is an apocalyptic number.

1666061562 is an abundant number, since it is smaller than the sum of its proper divisors (1984888518).

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

1666061562 is a wasteful number, since it uses less digits than its factorization.

1666061562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110478.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1666061562 is about 40817.4173852291. The cubic root of 1666061562 is about 1185.4875979459.

The spelling of 1666061562 in words is "one billion, six hundred sixty-six million, sixty-one thousand, five hundred sixty-two".