1061501655 has 24 divisors (see below), whose sum is σ = 1738864368. Its totient is φ = 552953856.

The previous prime is 1061501593. The next prime is 1061501657. The reversal of 1061501655 is 5561051601.

It is not a de Polignac number, because 1061501655 - 2¹² = 1061497559 is a prime.

It is a super-2 number, since 2×1061501655² = 2253571527135478050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061501657) 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 23 ways as a sum of consecutive naturals, for example, 8599 + ... + 46871.

It is an arithmetic number, because the mean of its divisors is an integer number (72452682).

Almost surely, 2^1061501655 is an apocalyptic number.

1061501655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061501655 is a deficient number, since it is larger than the sum of its proper divisors (677362713).

1061501655 is an equidigital number, since it uses as much as digits as its factorization.

1061501655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38367 (or 38324 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1061501655 is about 32580.6945137761. The cubic root of 1061501655 is about 1020.0940753292.

The spelling of 1061501655 in words is "one billion, sixty-one million, five hundred one thousand, six hundred fifty-five".