1611485572 has 12 divisors (see below), whose sum is σ = 2917344780. Its totient is φ = 777958496.

The previous prime is 1611485567. The next prime is 1611485581. The reversal of 1611485572 is 2755841161.

It can be written as a sum of positive squares in 2 ways, for example, as 308564356 + 1302921216 = 17566^2 + 36096^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6945943 + ... + 6946174.

It is an arithmetic number, because the mean of its divisors is an integer number (243112065).

Almost surely, 2^1611485572 is an apocalyptic number.

It is an amenable number.

1611485572 is a deficient number, since it is larger than the sum of its proper divisors (1305859208).

1611485572 is a wasteful number, since it uses less digits than its factorization.

1611485572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13892150 (or 13892148 counting only the distinct ones).

The product of its digits is 67200, while the sum is 40.

The square root of 1611485572 is about 40143.3129175956. The cubic root of 1611485572 is about 1172.3990931569.

The spelling of 1611485572 in words is "one billion, six hundred eleven million, four hundred eighty-five thousand, five hundred seventy-two".