1652126421101 has 4 divisors (see below), whose sum is σ = 1779213068892. Its totient is φ = 1525039773312.

The previous prime is 1652126421089. The next prime is 1652126421103. The reversal of 1652126421101 is 1011246212561.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 704171044201 + 947955376900 = 839149^2 + 973630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1652126421101 is a prime.

It is a super-2 number, since 2×1652126421101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1652126421103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63543323876 + ... + 63543323901.

It is an arithmetic number, because the mean of its divisors is an integer number (444803267223).

Almost surely, 2^{1652126421101} is an apocalyptic number.

It is an amenable number.

1652126421101 is a deficient number, since it is larger than the sum of its proper divisors (127086647791).

1652126421101 is a wasteful number, since it uses less digits than its factorization.

1652126421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127086647790.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 1652126421101 in words is "one trillion, six hundred fifty-two billion, one hundred twenty-six million, four hundred twenty-one thousand, one hundred one".