1655056956549 has 24 divisors (see below), whose sum is σ = 2333630803392. Its totient is φ = 1043220657600.

The previous prime is 1655056956529. The next prime is 1655056956569. The reversal of 1655056956549 is 9456596505561.

It is an interprime number because it is at equal distance from previous prime (1655056956529) and next prime (1655056956569).

It is not a de Polignac number, because 1655056956549 - 2¹² = 1655056952453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1655056956549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655056956529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 974352 + ... + 2063849.

It is an arithmetic number, because the mean of its divisors is an integer number (97234616808).

Almost surely, 2^{1655056956549} is an apocalyptic number.

1655056956549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1655056956549 is a deficient number, since it is larger than the sum of its proper divisors (678573846843).

1655056956549 is a wasteful number, since it uses less digits than its factorization.

1655056956549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038745 (or 3038726 counting only the distinct ones).

The product of its (nonzero) digits is 218700000, while the sum is 66.

The spelling of 1655056956549 in words is "one trillion, six hundred fifty-five billion, fifty-six million, nine hundred fifty-six thousand, five hundred forty-nine".