1055100000066 has 32 divisors (see below), whose sum is σ = 2476837069440. Its totient is φ = 293309652096.

The previous prime is 1055100000043. The next prime is 1055100000089. The reversal of 1055100000066 is 6600000015501.

It is an interprime number because it is at equal distance from previous prime (1055100000043) and next prime (1055100000089).

It is a super-2 number, since 2×1055100000066² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055099999991 and 1055100000045.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339477211 + ... + 339480318.

It is an arithmetic number, because the mean of its divisors is an integer number (77401158420).

Almost surely, 2^{1055100000066} is an apocalyptic number.

1055100000066 is an abundant number, since it is smaller than the sum of its proper divisors (1421737069374).

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

1055100000066 is a wasteful number, since it uses less digits than its factorization.

1055100000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678957578.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 1055100000066 its reverse (6600000015501), we get a palindrome (7655100015567).

The spelling of 1055100000066 in words is "one trillion, fifty-five billion, one hundred million, sixty-six", and thus it is an aban number.