1161561062 has 16 divisors (see below), whose sum is σ = 1754403840. Its totient is φ = 576772872.

The previous prime is 1161561047. The next prime is 1161561073. The reversal of 1161561062 is 2601651611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194639 + ... + 200517.

It is an arithmetic number, because the mean of its divisors is an integer number (109650240).

Almost surely, 2^1161561062 is an apocalyptic number.

1161561062 is a deficient number, since it is larger than the sum of its proper divisors (592842778).

1161561062 is a wasteful number, since it uses less digits than its factorization.

1161561062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1161561062 is about 34081.6822061353. The cubic root of 1161561062 is about 1051.1886952024.

The spelling of 1161561062 in words is "one billion, one hundred sixty-one million, five hundred sixty-one thousand, sixty-two".