2005661151572 has 48 divisors (see below), whose sum is σ = 3946776986880. Its totient is φ = 884873603328.

The previous prime is 2005661151569. The next prime is 2005661151607. The reversal of 2005661151572 is 2751511665002.

It is a congruent number.

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, 1326728 + ... + 2402400.

It is an arithmetic number, because the mean of its divisors is an integer number (82224520560).

Almost surely, 2^{2005661151572} is an apocalyptic number.

It is an amenable number.

2005661151572 is a deficient number, since it is larger than the sum of its proper divisors (1941115835308).

2005661151572 is a wasteful number, since it uses less digits than its factorization.

2005661151572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077272 (or 1077270 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 2005661151572 in words is "two trillion, five billion, six hundred sixty-one million, one hundred fifty-one thousand, five hundred seventy-two".