106651515105550 has 24 divisors (see below), whose sum is σ = 198372090483000. Its totient is φ = 42660547464480.

The previous prime is 106651515105521. The next prime is 106651515105587. The reversal of 106651515105550 is 55501515156601.

It is a happy number.

It is a super-2 number, since 2×106651515105550² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106651515105550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67058956 + ... + 68630944.

It is an arithmetic number, because the mean of its divisors is an integer number (8265503770125).

Almost surely, 2^{106651515105550} is an apocalyptic number.

106651515105550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106651515105550 is a deficient number, since it is larger than the sum of its proper divisors (91720575377450).

106651515105550 is a wasteful number, since it uses less digits than its factorization.

106651515105550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928900 (or 2928895 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 46.

The spelling of 106651515105550 in words is "one hundred six trillion, six hundred fifty-one billion, five hundred fifteen million, one hundred five thousand, five hundred fifty".