1020046545405 has 48 divisors (see below), whose sum is σ = 1874076210864. Its totient is φ = 511478876160.

The previous prime is 1020046545361. The next prime is 1020046545409. The reversal of 1020046545405 is 5045456400201.

1020046545405 is a `hidden beast` number, since 1 + 0 + 20 + 0 + 46 + 54 + 540 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 33437413881 + 986609131524 = 182859^2 + 993282^2 .

It is not a de Polignac number, because 1020046545405 - 2⁶ = 1020046545341 is a prime.

It is a super-2 number, since 2×1020046545405² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020046545405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020046545409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11367 + ... + 1428363.

It is an arithmetic number, because the mean of its divisors is an integer number (39043254393).

Almost surely, 2^{1020046545405} is an apocalyptic number.

1020046545405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020046545405 is a deficient number, since it is larger than the sum of its proper divisors (854029665459).

1020046545405 is a wasteful number, since it uses less digits than its factorization.

1020046545405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417966 (or 1417963 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 1020046545405 in words is "one trillion, twenty billion, forty-six million, five hundred forty-five thousand, four hundred five".