1051000656946 has 4 divisors (see below), whose sum is σ = 1576500985422. Its totient is φ = 525500328472.

The previous prime is 1051000656913. The next prime is 1051000656947. The reversal of 1051000656946 is 6496560001501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 961009656721 + 89991000225 = 980311^2 + 299985^2 .

It is a super-2 number, since 2×1051000656946² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051000656947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262750164235 + ... + 262750164238.

Almost surely, 2^{1051000656946} is an apocalyptic number.

1051000656946 is a deficient number, since it is larger than the sum of its proper divisors (525500328476).

1051000656946 is an equidigital number, since it uses as much as digits as its factorization.

1051000656946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525500328475.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1051000656946 in words is "one trillion, fifty-one billion, six hundred fifty-six thousand, nine hundred forty-six".