1055697779072 has 32 divisors (see below), whose sum is σ = 2107651567320. Its totient is φ = 526718562304.

The previous prime is 1055697779053. The next prime is 1055697779117. The reversal of 1055697779072 is 2709777965501.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×1055697779072³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 8770673 + ... + 8890224.

Almost surely, 2^{1055697779072} is an apocalyptic number.

It is an amenable number.

1055697779072 is a deficient number, since it is larger than the sum of its proper divisors (1051953788248).

1055697779072 is an equidigital number, since it uses as much as digits as its factorization.

1055697779072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17661378 (or 17661366 counting only the distinct ones).

The product of its (nonzero) digits is 58344300, while the sum is 65.

The spelling of 1055697779072 in words is "one trillion, fifty-five billion, six hundred ninety-seven million, seven hundred seventy-nine thousand, seventy-two".