10780561055 has 32 divisors (see below), whose sum is σ = 14510726208. Its totient is φ = 7619788800.

The previous prime is 10780561037. The next prime is 10780561073. The reversal of 10780561055 is 55016508701.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10780561037) and next prime (10780561073).

It is not a de Polignac number, because 10780561055 - 2¹² = 10780556959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2156639 + ... + 2161631.

It is an arithmetic number, because the mean of its divisors is an integer number (453460194).

Almost surely, 2^10780561055 is an apocalyptic number.

10780561055 is a deficient number, since it is larger than the sum of its proper divisors (3730165153).

10780561055 is a wasteful number, since it uses less digits than its factorization.

10780561055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107.

The product of its (nonzero) digits is 42000, while the sum is 38.

It can be divided in two parts, 10780 and 561055, that multiplied together give a square (6048172900 = 77770²).

The spelling of 10780561055 in words is "ten billion, seven hundred eighty million, five hundred sixty-one thousand, fifty-five".