1055051221964 has 6 divisors (see below), whose sum is σ = 1846339638444. Its totient is φ = 527525610980.

The previous prime is 1055051221963. The next prime is 1055051221969. The reversal of 1055051221964 is 4691221505501.

It is a happy number.

It is a super-2 number, since 2×1055051221964² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055051221963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131881402742 + ... + 131881402749.

It is an arithmetic number, because the mean of its divisors is an integer number (307723273074).

Almost surely, 2^{1055051221964} is an apocalyptic number.

It is an amenable number.

1055051221964 is a deficient number, since it is larger than the sum of its proper divisors (791288416480).

1055051221964 is a wasteful number, since it uses less digits than its factorization.

1055051221964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263762805495 (or 263762805493 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 1055051221964 in words is "one trillion, fifty-five billion, fifty-one million, two hundred twenty-one thousand, nine hundred sixty-four".