1534540520656 has 240 divisors, whose sum is σ = 3693043487232. Its totient is φ = 611132121600.

The previous prime is 1534540520647. The next prime is 1534540520663. The reversal of 1534540520656 is 6560250454351.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 89610111 + ... + 89627233.

Almost surely, 2^{1534540520656} is an apocalyptic number.

1534540520656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1534540520656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1846521743616).

1534540520656 is an abundant number, since it is smaller than the sum of its proper divisors (2158502966576).

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

1534540520656 is a wasteful number, since it uses less digits than its factorization.

1534540520656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17322 (or 17303 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 1534540520656 in words is "one trillion, five hundred thirty-four billion, five hundred forty million, five hundred twenty thousand, six hundred fifty-six".