1061565078 has 16 divisors (see below), whose sum is σ = 2426434560. Its totient is φ = 303304296.

The previous prime is 1061565031. The next prime is 1061565121. The reversal of 1061565078 is 8705651601.

It is a super-2 number, since 2×1061565078² = 2253840829658292168, which contains 22 as substring.

It is a Curzon number.

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, 12637638 + ... + 12637721.

It is an arithmetic number, because the mean of its divisors is an integer number (151652160).

Almost surely, 2^1061565078 is an apocalyptic number.

1061565078 is an abundant number, since it is smaller than the sum of its proper divisors (1364869482).

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

1061565078 is a wasteful number, since it uses less digits than its factorization.

1061565078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25275371.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 1061565078 is about 32581.6678210309. The cubic root of 1061565078 is about 1020.1143912461.

The spelling of 1061565078 in words is "one billion, sixty-one million, five hundred sixty-five thousand, seventy-eight".