2061626465340 has 144 divisors (see below), whose sum is σ = 7130802264768. Its totient is φ = 477625669632.

The previous prime is 2061626465303. The next prime is 2061626465351. The reversal of 2061626465340 is 435646261602.

It is a happy number.

2061626465340 is a `hidden beast` number, since 2 + 0 + 616 + 26 + 4 + 6 + 5 + 3 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25873072 + ... + 25952631.

It is an arithmetic number, because the mean of its divisors is an integer number (49519460172).

Almost surely, 2^{2061626465340} is an apocalyptic number.

2061626465340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061626465340 is an abundant number, since it is smaller than the sum of its proper divisors (5069175799428).

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

2061626465340 is a wasteful number, since it uses less digits than its factorization.

2061626465340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51825748 (or 51825743 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 2061626465340 in words is "two trillion, sixty-one billion, six hundred twenty-six million, four hundred sixty-five thousand, three hundred forty".