1051655650656 has 48 divisors (see below), whose sum is σ = 2972949631344. Its totient is φ = 323586353664.

The previous prime is 1051655650651. The next prime is 1051655650687. The reversal of 1051655650656 is 6560565561501.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1051655650656² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051655650599 and 1051655650608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051655650651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421335151 + ... + 421337646.

It is an arithmetic number, because the mean of its divisors is an integer number (61936450653).

Almost surely, 2^{1051655650656} is an apocalyptic number.

1051655650656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1051655650656 is an abundant number, since it is smaller than the sum of its proper divisors (1921293980688).

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

1051655650656 is a wasteful number, since it uses less digits than its factorization.

1051655650656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842672823 (or 842672815 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 1051655650656 in words is "one trillion, fifty-one billion, six hundred fifty-five million, six hundred fifty thousand, six hundred fifty-six".