1061947672155 has 32 divisors (see below), whose sum is σ = 1987270502400. Its totient is φ = 536563033056.

The previous prime is 1061947672153. The next prime is 1061947672171. The reversal of 1061947672155 is 5512767491601.

1061947672155 is a `hidden beast` number, since 1 + 0 + 6 + 19 + 476 + 7 + 2 + 155 = 666.

It is not a de Polignac number, because 1061947672155 - 2¹ = 1061947672153 is a prime.

It is a super-2 number, since 2×1061947672155² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061947672153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207004779 + ... + 207009908.

It is an arithmetic number, because the mean of its divisors is an integer number (62102203200).

Almost surely, 2^{1061947672155} is an apocalyptic number.

1061947672155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061947672155 is a deficient number, since it is larger than the sum of its proper divisors (925322830245).

1061947672155 is a wasteful number, since it uses less digits than its factorization.

1061947672155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414014720 (or 414014714 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The spelling of 1061947672155 in words is "one trillion, sixty-one billion, nine hundred forty-seven million, six hundred seventy-two thousand, one hundred fifty-five".